Author: Plamen Marinov-Serafimov, Vladislav Popov, Irena Golubinova, Todor Kertikov
Scientific Works Academic Publishing House of the Agricultural University – Plovdiv
ISSN 1312-6318
Author: Plamen Marinov-Serafimov, Vladislav Popov, Irena Golubinova, Todor Kertikov